title: Arginine-serine-rich domains bound at splicing enhancers contact the branchpoint to promote prespliceosome assembly.
mesh_terms: D001120:Arginine / Q000378:metabolism; D001483:Base Sequence / Q000502:physiology; D001665:Binding Sites / Q000502:physiology; D004742:Enhancer Elements, Genetic / Q000502:physiology*; D006367:HeLa Cells; D006801:Humans; D008969:Molecular Sequence Data; D011485:Protein Binding / Q000502:physiology; D017434:Protein Structure, Tertiary / Q000502:physiology; D012326:RNA Splicing / Q000502:physiology*; D012333:RNA, Messenger / Q000378:metabolism*; D016601:RNA-Binding Proteins / Q000378:metabolism*; D011993:Recombinant Fusion Proteins; D012694:Serine / Q000378:metabolism; D017381:Spliceosomes / Q000235:genetics / Q000378:metabolism*
chemical_list: D012333:RNA, Messenger; D016601:RNA-Binding Proteins; D011993:Recombinant Fusion Proteins; D012694:Serine; D001120:Arginine